High speed links for flexible optical networks
Abstract/Contents
- Abstract
- Web-based applications, content streaming, and cloud computing have been driving the need for large-scale high-bandwidth datacenter networks. Optical links from ultra-long-distance links between datacenters to short-reach Ethernet links inside a warehouse are critical for scaling datacenter networks. In this dissertation, we study spectrally efficient and high-speed optical links for various types of optical networks such as intra-datacenter networks as well as wide-area networks interconnecting datacenters. In the first part of this dissertation, we study short-reach intra-datacenter networks. More specifically, we investigate various schemes to scale these links to 100 Gbit/s per-wavelength using multi-level intensity modulation and direct detection, relying on digital signal processing to compensate for component bandwidth limitation. Moreover, we discuss the complexity and requirements for different components of the system. We further show that 100 Gbit/s per-wavelength links are constrained in their optical power budget and study the benefits and challenges of using semiconductor optical amplifiers to improve the power margin. Extra margin can enable future datacenter architectures based on high number of wavelength-division multiplexed channels and optical circuit switching. In the second part of this dissertation, we propose a modular architecture for long-haul optical networks interconnecting datacenters that can support spectrally efficient superchannels with variable bandwidth. In the proposed architecture, multiple synchronized transceivers can cooperate to modulate/detect a superchannel comprising of multiple subcarriers, enabling transmission at bit rates beyond 1 Tbit/s. We analyze and simulate the performance of the proposed system in the presence of linear fiber impairments and synchronization errors and establish design requirements for practical deployment of such an architecture.
Description
| Type of resource | text |
|---|---|
| Form | electronic; electronic resource; remote |
| Extent | 1 online resource. |
| Publication date | 2016 |
| Issuance | monographic |
| Language | English |
Creators/Contributors
| Associated with | Sharif, Milad |
|---|---|
| Associated with | Stanford University, Department of Electrical Engineering. |
| Primary advisor | Kahn, Joseph M |
| Thesis advisor | Kahn, Joseph M |
| Thesis advisor | Miller, D. A. B |
| Thesis advisor | Solgaard, Olav |
| Advisor | Miller, D. A. B |
| Advisor | Solgaard, Olav |
Subjects
| Genre | Theses |
|---|
Bibliographic information
| Statement of responsibility | Milad Sharif. |
|---|---|
| Note | Submitted to the Department of Electrical Engineering. |
| Thesis | Thesis (Ph.D.)--Stanford University, 2016. |
| Location | electronic resource |
Access conditions
- Copyright
- © 2016 by Milad Sharif
- License
- This work is licensed under a Creative Commons Attribution Non Commercial 3.0 Unported license (CC BY-NC).
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